How many grams are equal to 5,673 milligrams? Use the placement of the decimal point when dividing by a power of 10 to help you. A) 5.673 grams
B) 56,730 grams
C) 567.3 grams
D) 56.73 grams

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g